Multilayer structures refer to materials or systems consisting of multiple layers stacked on top of each other. These structures can be found in a wide range of applications, including electronic devices, coatings, sensors, and medical implants. Research in multilayer structures focuses on developing novel materials with advanced properties, such as enhanced strength, conductivity, flexibility, and surface characteristics. Researchers study the interactions between different layers, the control of individual layer thicknesses, and the methods of depositing or assembling the layers to achieve specific functionalities. Additionally, multilayer structures can be designed to have unique optical, thermal, and mechanical properties that can be tailored for specific applications. Research in this area often involves computational modeling, experimental characterization, and optimization techniques to create materials with improved performance and functionality.